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Backend Developer

Barcelona🌐 Remote💼 Full-time🗓 2025-11-02 → 2026-09-23

Core

Backend Developer building a high-throughput web platform for the retail sector.

Role type

Senior Backend Developer

Builds

Web platform with complex business logic for retail clients

Domain

Retail technology

Deliverable

production ML models | product features

Required skills

Java, reactive programming, OpenAPI, REST API design, unit and integration testing (JUnit, Mockito, Spock), asynchronous communication protocols, relational and non-relational databases (DB2, Mongo, Couchbase, Redis), caching systems, continuous integration

Preferred skills

Groovy, Scala, Python, Go, Domain-Driven Design (DDD), DB2 and Websphere Commerce, high-availability systems, agile methodologies

Technologies

Java, DB2, Mongo, Couchbase, Redis, JUnit, Mockito, Spock, Sonar

Responsibilities

Develop complex business logic applications, design and develop REST interfaces, write unit and integration tests, work with asynchronous protocols, optimize system performance and caching

Seniority

Senior, hands-on IC

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